1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e11909b2ee7f7260e2c13b326b984b26b8d4df198fbacef3749b70ffd69b10. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed911c18-8a4f-4993-95a0-bf2ff993324a.json and https://artists.proofprofile.net/proofs/artist/ed911c18-8a4f-4993-95a0-bf2ff993324a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371c29da1e0804c5e793d5c4a5e4b1b68b1600b32c119a83672114c7b902aa95. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2284754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd50a0f0a668fe7a724ed06198f342130797b48023b4ce4bbdafbf474e631d61. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2241286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d12375afda6b9ca260bffad39e51440ccc50c33b4d63eb2cabd9a56a725a59. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2224340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2a1480eadf4db52d0cec5b920fb9e77e76587ed501bb6ce9ef0de854dd7451. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2305701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebda5e502adcf052132ff1844e5416eea57b6a61284c5c35fcdca994655e1ab. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6de91583db86cd3b6d62f03609a4234a08bcf68be90037ef13e5da1773f403. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2293507.
Intro Que Te Pasa Gato + Me Gustas Tu Y Tus Tet#s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e574c6e0708e5c2d215aa6aca5a0e7ea51312209a45899c117fc772db2097ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2232803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83918d0523424817bd5a3859354aaa00de584ac336c00d7113be8ee50e489fbb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2294498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3928a5869ad73f472f5226f1d07b9e27e639e2dbf6551039150f40530b1b63cc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2214472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951854ae4f32201ffae662f266f232459a5ac45f88ea0c23d36f2fd96f4a9b1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2258148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2599ae211c84170f126f65e269b8464b8529c01dae3bdb7a6b89543994ad5d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2208123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e3f237b1f35d6cd5e5241625b0d2224de7630116a7b9d94b6f68efd9f9bd9. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2225806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba661077075bf1b5d3cb498ac64406243c90d5d6acdb15df8f446ef4534d4439. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2297900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e509b70e977d2e07a3c41608f03272c1a86909b7bfe6a58a4504167a01b00. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2223184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa29caf40a7613fc8b434a7f864c94ae19ab208a4515683bf06391470355a3c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2295685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4cde5061b5eb1a089b6958640ffc23fb1f3014e362192b06d544a9bc3ce412. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2255324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa95a51089236aed694250e88e541e43bd85abdd527c68b18207dc16259ca159. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2296110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd469f7c4f4ea563ec4167c662bf884074ed2454e82bc1d7be803d17359c3af95. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2284094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cf13b74aa3ee939840ca0e655e01670ac3b46e7c097cdcbae6390069b0e2c3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2288177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1eda3300dbab5acf19b48ee3893ae67147ed6f0ec2804d2d08128d84d78593. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2246092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa962c3ef69d42cc5a3bad62eef3d13bbc0d155e561049fccf61d3bae6f296f6a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2260926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe86ffaa5f46a5741ec4f3743137ac13dbb67c7d23536decd55b1aeb27e3f4ad. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2251462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113c9937afc206ec6f420a825f0f8480e206e91fb4c09c973eec41299a80b631. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2292494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dffb4ee631c445bdc625659d4b9b63d896c804fa624b81884852fc8ad859a90. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2268891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85024b0e614ee2fbe201370c067bcc0428d5b8a487d94f507da7c117445fb144. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2202694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b711a6c3cccbe05fb91e17bde40d987f5cbfe5979ae2939ab16d4dc76a3444. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2222362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488b60035a422f6207a24612f9a385b3d05c9956127ba8a678d9d3d9b546f213. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2296511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec7dffd820e80e08f267c4fa1a753522150ac5a33c0dbabe27db2002cb68916. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2246464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712f1acf30b96cbd74defdd821dda8bfa9937cda9ff37d0ef492067098c2fd2b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2206054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efb31d2c0507aaf9e7af76375271cb7da58c350d13017f85acf40dd06e50e53. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2208735.